3Esch E.Promoting Learner Autonomy:Criteria for the Selection of Appropri- ate Methods [ A ].In Pemberton,R.et al (Eds.).Taking Control:Autonomy in Language Learning [ C ].Hong Kong:Hong Kong University Press, 1996.
4Gardner R C.Social Psychology and Second Language Learning: The role of attitudes and motivation [M ].London:Edward Arnold Publishers, 1985.
5Holec H.Autonomy and Foreign Language Learning [ M ].Oxford:Pargamon, 1981.
